<?php
header('Content-Type:text/html;charset=utf-8');
?>
<!DOCTYPE html>

<html>

<head>
    <meta charset="utf-8">
    <title>I'm chen</title>
</head>

<body>
<!--<p>-->
<!---->
<!--    hello-->
<!--</p>-->
<!--    <input type="text" value="--><?//= 'hello' ?><!--">-->
<h2>
    <?php

    $str_s='hello';
    $str_d='cpl';
    $str_n='replace';
    $str_new='<a href="http://192.168.0.109/gc1.php">to gc1.php</a>';
    echo $str_new;


    ?>
</h2>

</body>

</html>